Question

Rutherford model its limitations and drawback

Answer 1

First of all...limitation and drwback both are of same meaning......Ok

   •  The orbital revolution of the electron is not expected to be stable.
    •  According to Rutherford’s model, the electrons, while moving in their orbits, would give up energy.

This would make them slow down, gradually and move towards the nucleus. The electrons will follow a spiral path and then fall into the nucleus. Ultimately, the atom would collapse. But in reality the atom is stable.

Answer 2

Rutherford's atomic model could very well explain the presence of positively nucleus and presence of electrons outside the nucleus in an atom . However the failure of Rutherford's theory stemmed from two major objection
Firstly 1) this model is in contradiction to the principal of classical electrodynamics . According to this ,any charged particle in circular motion radiates energy continuously . The being a charged particle in circular motion loses energy. This should ultimately result in its spiral path towards nucleus and the atom should the collapse
2)The second major objection for Rutherford's model come from the pattern of atomic spectra.
When light passes through the prism , it gets spilt up into its components of different wave lenghts like visible , ultraviolet, infrared light etc. The arrangements of component light energies According to the wave lenghts is called spectrum and spectroscope is the instrument designed to observe spectra .
Since white light is composed of light of different wave lenghts , a continuous band of different wave lenghts is obtained is called continuous spectrum. light from the sun incandescent bulb gives such type of spectra .
But when the spectrum is taken for the atoms of the gas present in discharge tube , it is found to consist of discrete lines of different colours . This is called line spectrum , which is a discontinuous spectrum
According to the Rudherfords atomic model , electrons revolving around the nucleus should lose energy continuous ly . Hence the spectra of atom should be a continuous spectrum whereas the observed atomic spectra was a line spectrum